Application of Column Flotation for Egyptian Graphite
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Fatma H. Abd EL-Rahiem
Abstract
This paper focuses on the graphite flotation from Bent Um Qureia ore at Eastern desert of Egypt. Minerals in ore were evaluated by XRD. The sample was crushed in jaw crushing. The sample was ground minus 74 μm and the product was then sieved +45 and −45 μm. The conventional and column flotation were used to float the graphite. In two flotation techniques, kerosene was used as a collector. Factor affecting the graphite grade was investigated. The rougher concentrate was cleaned in both conventional cell and column to compare the performance. The effects of different variables were evaluated in both cases and the conditioned were optimized to achieve better grade and recovery. The results indicate that column can give superior performance compared to conventional cell by either reducing the number of stages of operation or by improving grade and recovery.
Kurzfassung
Diese Arbeit untersucht die Graphit-Flotation von Erz aus der UM Qureia-Miene in der östlichen Wüste von Ägypten. Die Mineralien im Erz wurden mittels XRD ausgewertet. Die Probe wurde mit einem Backenbrecher zerkleinert, auf 74 μm gemahlen und anschließend auf +45 und −45 μm gesiebt. Zur Flotation des Graphits wurde die konventionelle und die Säulen-Flotation verwendet. Bei zwei Flotationstechniken wurde Kerosin als Kollektor eingesetzt. Faktoren, die den Graphitgrad beeinflussen, wurden untersucht. Um die Leistung zu vergleichen, wurde das rohe Konzentrat in beiden, der konventionellen Zelle und in der Säule gereinigt. Die Auswirkungen der verschiedenen Variablen wurden für beide Fälle ausgewertet und die Bedingungen optimiert, um eine bessere Qualität und Ausbeute zu erzielen. Die Resultate zeigen, daß die Säule im Vergleich zur konventionellen Zelle eine höhere Leistung ergibt, entweder durch Reduzierung der Verfahrensstufen oder durch Verbesserung des Grades und der Ausbeute.
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© 2004, Carl Hanser Publisher, Munich
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- Contents/Inhalt
- Contents
- Abstracts
- Abstracts
- Application
- Application of Column Flotation for Egyptian Graphite
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Articles in the same Issue
- Contents/Inhalt
- Contents
- Abstracts
- Abstracts
- Application
- Application of Column Flotation for Egyptian Graphite
- The Potential of Alkyl Polyglucosides and Polyethylene Glycol Glucosides Coatings for Improving the Storage and Shelf-Life of Pineapples
- Environmental Analysis
- Determination of Alcohol Ethoxylate Components in Sewage Sludge
- Physical Chemistry
- Characterization of Langmuir-Monolayers of Molecular Tweezers and Clips by Means of Brewster-Angle-Microscopy
- Surface Tension and Micellization of Aqueous Alkyl Polyglucosides Solutions: Influence of the Molecular Structure and the Addition of Electrolyte
- Technical Chemistry
- Modeling of Fatty Acid Methyl Ester Oxyethylation in a Semi-Batch Reactor with Successive Dosing of Ethylene Oxide
